triangles.scad

/**
    Makes a right triangle with the desired side lengths and thickness (z)
    **** Deprecated
*/
module rightTriangle(horizontalLength, verticalLength, thickness) {
    hull() {
        cube([horizontalLength, thickness, 0.01]);
        cube([0.01, thickness, verticalLength]);
    }
}
module rightTriangle3d(a = 10, b = 10, length = 5) {
    echo("***** RightTriangle3d *****");
    echo("Length: ", length);
    translate([0, length, 0])  rotate([90, 0, 0]) linear_extrude(length) rightTriangle2d(a = a, b = b);
}

module rightTriangle2d(a = 10, b = 20) {
    echo("***** RightTriangle2d *****");
    points = [[0, 0], [a, 0], [0, b]];
    echo(str("Points: ", points, ", a: ", a, ", b: ", b, ", c (calculated): ", c(a, b)));
    polygon(points = points);
}

module objectAtEquilateralPoints(baseLength = 10) {
    points = equilateralTrianglePoints(baseLength);
    for (point = points) {
        translate(point) children();
    }
}

module equilateralTriangle2d(baseLength = 10) {
    height = baseLength * sqrt(3) / 2;
    points = [
            [0, 0],
            [baseLength, 0],
            [baseLength / 2, height]
        ];

    // Create the polygon (equilateral triangle) using the points
    polygon(points);
}

function equilateralTrianglePoints(baseLength = 10) = [
        [0, 0],
        [baseLength, 0],
        [baseLength / 2, baseLength * sqrt(3) / 2]
    ];


// ======================== Functions ================

//Calculates the hyponetuse of a right triangle given the two sides a and b
function c(a, b) = sqrt(pow(a, 2) + pow(b, 2));

//Equilateral Triangle
//size = 10;
//points = [[0, 0], [size, 0], [size / 2, size]];

//rightTriangle2d(a = 10, b = 10);
//rightTriangle3d(a = 10, b = 10, length = 20);
//equilateralTriangle2d(20);
//echo(equilateralTrianglePoints(20));

//$fn = 100;
//hull() objectAtEquilateralPoints(13.5) {
//    circle(1);
//}